Tube



FIG. 1 is a front perspective view of my new design;

FIG. 2 is a front elevational view of my new design, the rearelevational side view being identical;

FIG. 3 is a side elevational view of one side of my new design, theopposite elevational side view being identical;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines immediately adjacent the shaded areas represent thebounds of the claimed design while all other broken lines are directedto environment and are for illustrative purposes only; the broken linesform no part of the claimed design.

The ornamental design for a tube, as shown and described.